+

US9749158B2 - Variable feedback for universal terrestrial radio access - Google Patents

Variable feedback for universal terrestrial radio access Download PDF

Info

Publication number
US9749158B2
US9749158B2 US11/746,330 US74633007A US9749158B2 US 9749158 B2 US9749158 B2 US 9749158B2 US 74633007 A US74633007 A US 74633007A US 9749158 B2 US9749158 B2 US 9749158B2
Authority
US
United States
Prior art keywords
codebook
local
codeword
codewords
baseline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US11/746,330
Other languages
English (en)
Other versions
US20070265037A1 (en
Inventor
Kyle Jung-Lin Pan
Robert Lind Olesen
Donald M. Grieco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Patent Holdings Inc
Original Assignee
InterDigital Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by InterDigital Technology Corp filed Critical InterDigital Technology Corp
Priority to US11/746,330 priority Critical patent/US9749158B2/en
Assigned to INTERDIGITAL TECHNOLOGY CORPORATION reassignment INTERDIGITAL TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRIECO, DONALD M., OLESEN, ROBERT LIND, PAN, KYLE JUNG-LIN
Publication of US20070265037A1 publication Critical patent/US20070265037A1/en
Application granted granted Critical
Publication of US9749158B2 publication Critical patent/US9749158B2/en
Assigned to INTERDIGITAL PATENT HOLDINGS, INC. reassignment INTERDIGITAL PATENT HOLDINGS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INTERDIGITAL TECHNOLOGY CORPORATION
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0673—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using feedback from receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel
    • H04L2025/03808—Transmission of equaliser coefficients

Definitions

  • the present invention relates generally to the field of wireless communications. More specifically, the present invention relates to variable feedback in a wireless communication system.
  • 3GPP and 3GPP2 are standards bodies that are considering the long term evolution of wireless communication systems. The bodies have promulgated specifications for feedback in next generation networks.
  • wireless specification 3GPP 25.814 provides that, for any additional feedback required for preceding, any related computational complexity that is incurred due to the additional feedback should be taken into account.
  • a codebook based feedback method should select a pre-coding vector from a codebook in order to reduce signaling overhead.
  • the size of the codebook should be minimized and the codebook should be static.
  • the amount of feedback should be minimized. Furthermore, an update interval of the selected pre-coding vector should be sufficiently short to track instantaneous channel variation.
  • efficient methods for feedback are desirable for next generation wireless networks, particularly multiple-input/multiple-output (MIMO) systems.
  • the present invention includes a method and apparatus for variable feedback in a wireless communication system.
  • the method and apparatus include the use of a baseline codebook and local codebooks.
  • the local codebooks are subsets of the baseline codebooks.
  • the local codebooks include codewords that are chosen based on certain criteria.
  • FIG. 1 shows an exemplary wireless system, including an access point (AP) and a plurality of wireless transmit/receive units (WTRUs), configured in accordance with the present invention
  • AP access point
  • WTRUs wireless transmit/receive units
  • FIG. 2 is a functional block diagram of an AP and a WTRU of the wireless communication system of FIG. 1 ;
  • FIG. 3 is a block diagram of a baseline codebook and local codebooks in accordance with one embodiment of the present invention.
  • FIG. 4 is a block diagram of a baseline codebook and local codebooks in accordance with an additional embodiment of the present invention.
  • FIG. 5 is a block diagram of a baseline codebook and local codebooks in accordance with another embodiment of the present invention.
  • FIG. 6 is a block diagram of a baseline codebook and local codebooks in accordance with another embodiment of the present invention.
  • wireless transmit/receive unit includes but is not limited to a user equipment (UE), a mobile station, a fixed or mobile subscriber unit, a pager, a cellular telephone, a personal digital assistant (PDA), a computer, or any other type of user device capable of operating in a wireless environment.
  • base station includes but is not limited to a Node-B, a site controller, an access point (Base station), or any other type of interfacing device capable of operating in a wireless environment.
  • the wireless communication system 100 includes a plurality of wireless communication devices, such as an AP 110 and a plurality of WTRUs 120 , capable of wirelessly communicating with one another.
  • AP 110 a plurality of wireless communication devices
  • WTRUs 120 a plurality of wireless communication devices capable of wirelessly communicating with one another.
  • the wireless communication devices depicted in the wireless communication system 100 are shown as APs and WTRUs, it should be understood that any combination of wireless devices may comprise the wireless communication system 100 . That is, the wireless communication system 100 may comprise any combination of APs, WTRUs, stations (STAs), and the like.
  • the wireless communication system 100 may include an AP and client device operating in an infrastructure mode, WTRUs operating in ad-hoc mode, nodes acting as wireless bridges, or any combination thereof. Additionally, in a preferred embodiment of the present invention, the wireless communication system 100 is a wireless local area network (WLAN). However, the wireless communication system 100 may be any other type of wireless communication system.
  • WLAN wireless local area network
  • FIG. 2 is a functional block diagram of an AP 110 and a WTRU 120 of the wireless communication system 100 of FIG. 1 .
  • the AP 110 and the WTRU 120 are in wireless communication with one another.
  • the AP 110 includes a processor 215 , a receiver 216 , a transmitter 217 , and an antenna 218 .
  • the processor 215 is configured to generate, transmit, and receive data packets in accordance with the present invention.
  • the receiver 216 and the transmitter 217 are in communication with the processor 215 .
  • the antenna 218 is in communication with both the receiver 216 and the transmitter 217 to facilitate the transmission and reception of wireless data.
  • the WTRU 120 includes a processor 225 , a receiver 226 , a transmitter 227 , and an antenna 228 .
  • the processor 225 is configured to generate, transmit, and receive data packets in accordance with the present invention.
  • the receiver 226 and the transmitter 227 are in communication with the processor 225 .
  • the antenna 228 is in communication with both the receiver 226 and the transmitter 227 to facilitate the transmission and reception of wireless data.
  • the present invention may be implemented in a WTRU or base station.
  • the present invention is applicable to both the physical layer (PHY) and the digital baseband.
  • the present invention may be implemented in wireless communication systems employing the following air interfaces: orthogonal frequency division multiplexing (OFDM), orthogonal frequency division multiple access (OFDMA), single carrier-frequency division multiple access (SC-FDMA), wideband code division multiple access (WCDMA), time division duplex (TDD), including HCR, LCR, and TDS-CDMA, frequency division duplex (FDD), IEEE 802.16e, and IEEE 802.11n air interfaces.
  • OFDM orthogonal frequency division multiplexing
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier-frequency division multiple access
  • WCDMA wideband code division multiple access
  • TDD time division duplex
  • FDD frequency division duplex
  • IEEE 802.16e IEEE 802.16e
  • IEEE 802.11n air interfaces OFDM
  • OFDM orthogonal frequency division multiplexing
  • feedback may be variable.
  • the variable feedback may include a baseline codebook and one set of local codebooks. This set of local codebooks is correlated with a baseline codebook. Each local codebook in a local codebook set corresponds to and is correlated with each codeword in the baseline codebook. Codewords in codebooks can be vectors, matrices or vector subsets.
  • the correlation may be used for designing a local codebook set based on factors, such as satisfaction of a certain range of channel variation rates, vehicle speed, Doppler shift, delay spread, frequency selectivity, coherence time and/or coherence bandwidth, and rank, for example.
  • the feedback typically requires 4 bits for the baseline codebook and 2 bits for the local codebook.
  • Feedback can be 4 bits, 2 bits or a variable number up to 4 bits.
  • the variable feedback may also be variable and preferably based on channel conditions or other similar factors.
  • the variable feedback may include a baseline codebook, and more than one set of local codebooks. Depending on channel conditions one of the local codebook sets preferably is used.
  • the baseline codebook preferably is predetermined. Codewords in codebooks can be vectors, matrices, vector subsets and the like. Each local codebook is generated from and is a subset of the baseline codebook.
  • Each local codebook in a local codebook set may be relatively small as compared to the baseline codebook, which results in reduced signaling overhead. However, each local codebook in a local codebook set may be sufficiently large so that the local codebook may track the channel variation.
  • a receiver may select the appropriate set of codebooks based on a rate of channel variation, degree of frequency selectivity, or another channel condition. These factors may be combined.
  • FIG. 3 is a block diagram of a baseline codebook and local codebooks in accordance with one embodiment of the present invention.
  • FIG. 3 shows a baseline codebook 302 , local codebook X 304 , local codebook set XX 305 , local codebook Y 306 and local codebook set YY 307 .
  • This embodiment should include one baseline codebook and more than one local codebook set.
  • Each codeword in the baseline codebook 302 has an associated set of local codebooks.
  • the baseline codebook 302 includes, for example, 16 codewords 310 , each with a codeword index 312 .
  • Local codebook X 1 304 and local codebook Y 1 306 are generated from the sixteen codewords 310 in the baseline codebook 302 and are associated with the codeword at codeword index 1 ( 308 ).
  • Local codebook X 2 314 and local codebook Y 2 316 are generated from the sixteen codewords 310 in the baseline codebook 302 and are associated with the codeword at codeword index 2 .
  • Local codebook set XX 305 is the set of codebooks that contains local codebooks X 1 through X 16 .
  • the local codebook set YY 307 is the set of codebooks that contains local codebook sets Y 1 through Y 16 . As shown in FIG.
  • local codebook X 1 304 is generated by taking the codewords associated with codeword index 5 , codeword index 12 , codeword index 7 and codeword index 3 from the baseline codebook 302 .
  • Local codebook Y 1 306 is generated by taking the codewords associated with codeword index 6 , codeword index 9 , codeword index 4 and codeword index 8 from the baseline codebook 302 .
  • a correlation between each of the baseline codewords is used as a criterion for generating each of the local codebooks ( 304 , 306 ).
  • the correlation between codewords can be used as a criterion for generating the local codebooks. This can be done in time domain and/or in frequency domain.
  • the selected codeword should have a high correlation in time with the codeword in use at the time the local codebook is being generated.
  • the selected codeword preferably has a low correlation in time with the codeword in use at the time the local codebook is being generated.
  • the selected codeword should have a high correlation in frequency with the codeword in use at the time the local codebook is being generated.
  • the selected codeword preferably has a low correlation in frequency with the codeword in use at the time the local codebook is being generated.
  • local codebook X 1 304 and local codebook Y 1 306 are associated with the codeword at codeword index 1 308 of the baseline codebook 302 .
  • Local codebook X 1 304 is a slow channel codebook.
  • the codewords associated with codeword indices 5 , 12 , 7 and 3 have a high correlation with the codeword associated with codeword index 1 308 of the baseline codebook 302 . Therefore, if the codeword associated with codeword index 1 308 of the baseline codebook 302 is in use when codebook X 304 is generated, codebook X should be populated with those codewords that have a high correlation with codeword associated with codeword index 1 ( 308 ).
  • local codebook Y 1 is a fast channel codebook.
  • the codewords associated with codeword indices 6 , 9 , 4 and 8 have a low correlation with the codeword associated with codeword index 1 308 of the baseline codebook 302 . Therefore, if the codeword associated with codeword index 1 308 of the baseline codebook 302 is in use when local codebook Y 1 304 is generated, local codebook Y 1 should be populated with those codewords that have a low correlation with a codeword associated with codeword index 1 308 . At least one local codebook is generated for each of the codewords in the baseline codebook 302 .
  • Local codebook X 1 304 and local codebook Y 1 306 are associated with the codeword at codeword index 1 308 of the baseline codebook 302 .
  • Local codebook X 1 304 is a “small frequency selectivity channel” codebook.
  • the codewords associated with codeword indices 5 , 12 , 7 and 3 have a high correlation, in frequency, with the codeword associated with codeword index 1 308 of the baseline codebook 302 . Therefore, if the codeword associated with codeword index 1 308 of the baseline codebook 302 is in use when codebook X 1 304 is generated, codebook X 1 should be populated with those codewords that have a high correlation in frequency with the codeword associated with codeword index 1 308 .
  • Local codebook Y 1 is a “large frequency selectivity channel” codebook.
  • the codewords associated with codeword indices 6 , 9 , 4 and 8 have a low correlation, in frequency with the codeword associated with codeword index 1 308 of the baseline codebook 302 . Therefore, if the codeword associated with codeword index 1 308 of the baseline codebook 302 is in use when local codebook Y 1 304 is generated, local codebook Y 1 should be populated with those codewords that have a low correlation in frequency with the codeword associated with codeword index 1 308 . At least one local codebook is generated for each of the codewords in the baseline codebook 302 .
  • an optimal codeword from among the codewords in local codebook X 1 304 is selected to be used for the next feedback signal. More particularly, the codeword that has the highest correlation with the codeword at index 1 308 is selected from the codewords associated with codeword index 5 , codeword index 12 , codeword index 7 and codeword index 3 from the baseline codebook 302 . If the channel condition is fast at the time that the codeword at codeword index 1 308 is being used for feedback, the optimal codeword is selected from the codewords in local codebook Y 1 306 for use with the next feedback signal. More particularly, the codeword that has the highest correlation with the codeword represented by codeword index 1 308 is selected from the codewords associated with codeword index 6 , codeword index 9 , codeword index 4 and codeword index 8 from the baseline codebook 302 .
  • Local codebook set XX 305 and local codebook set YY 307 can be combined into a local codebook set.
  • the local codebook set may include a combination of each local codebook in local codebook set XX 305 and its corresponding local codebook in local codebook set YY 307 .
  • Local codebook X 1 304 and local codebook Y 1 306 may be combined into a local codebook Z 1 318 .
  • Local codebook X 2 314 and local codebook Y 2 316 may be combined into a local codebook Z 2 320 .
  • the local codebook set ZZ 322 contains local codebooks Z 1 through Z 16 .
  • Local codebook set ZZ 322 can also be formed by combining two or more local codebook sets.
  • the local codebook set ZZ 302 can also be formed by designing the codewords and local codebooks based on certain design factors. Feedback can be variable and may depend on channel condition when only one local codebook set is used.
  • Local codebooks may be generated from a baseline codebook.
  • each of the local codebooks may contain codewords that are similar to each other as well as codewords that are different. This “overlapping” of codewords in each of the local codebooks may result in improved detection accuracy when channel variation is in a transition zone, that is, when channel variation is between slow and fast, and/or when frequency selectivity is in a transition zone, that is, when frequency selectivity is between small and large selectivity.
  • FIG. 4 is a block diagram of a baseline codebook and local codebooks in accordance with an additional embodiment of the present invention.
  • Local codebook X 1 404 and local codebook Y 1 406 overlap.
  • Each local codebook in local codebook set XX 408 and local codebook set YY 410 overlap.
  • Local codebook X 2 412 and local codebook Y 2 414 overlap.
  • a local codebook X 1 404 includes the codewords that correspond to codeword indices 5 , 12 , 7 and 3 of the baseline codebook 402 .
  • a local codebook Y 1 406 includes the codewords that correspond to codeword indices 6 , 9 , 4 , and 8 of the baseline codebook 402 as well as the codewords that correspond to codeword indices 7 and 3 of the baseline codebook 402 .
  • Both local codebook X 1 404 and local codebook Y 1 406 include the codewords that correspond to the codeword indices 7 and 3 of the baseline codebook 402 .
  • the number of codewords that are included in both local codebook X 1 404 and local codebook Y 1 406 and the particular codewords that overlap between local codebooks X 1 and Y 1 may be a design parameter that preferably is optimized through design processes such as simulations.
  • the number of codewords that are included in both local codebook X 1 404 and local codebook Y 1 , 406 may also be a design parameter that preferably is optimized through design processes such as simulations.
  • FIG. 5 is a block diagram of a baseline codebook and local codebooks in accordance with another embodiment of the present invention.
  • Local codebook X 1 504 is a subset of local codebook Y 1 506 .
  • a local codebook X 1 504 includes the codewords that correspond to codeword indices 5 , 12 , 7 and 3 of the baseline codebook 502 .
  • a local codebook Y 1 506 includes the codewords that correspond to codeword indices 6 , 9 , 4 , and 8 of the baseline codebook 502 as well as the codewords that correspond to codeword indices 5 , 12 , 7 and 3 of the baseline codebook 502 .
  • Both local codebook X 1 504 and local codebook Y 1 506 include the codewords that correspond to the codeword indices 5 , 12 , 7 and 3 of the baseline codebook 502 .
  • Local codebook Y 1 506 includes all the codewords contained in local codebook X 1 504 .
  • the number of codewords that are included in both local codebook X 1 504 and local codebook Y 1 506 may be a design parameter that preferably is optimized through design processes such as simulations.
  • FIG. 6 is a block diagram of three codebooks in accordance with another embodiment of the present invention.
  • feedback should be variable and depend on channel conditions.
  • the local codebooks should be of different sizes. This should result in increased design flexibility and an efficient balance of complexity, overhead and performance.
  • local codebook X 1 604 includes codewords that correspond to codeword indices 5 , 12 , 7 and 3 of baseline codebook 602 .
  • local codebook X 1 604 has four (4) entries.
  • Local codebook Y 1 606 includes the codewords that correspond to codeword indices 6 , 9 , 4 , 8 , 10 and 14 of baseline codebook 602 .
  • Local codebook Y 1 606 has six (6) entries.
  • Variable feedback may be implemented with one baseline codebook and one or more local codebooks, in general.
  • the baseline codebook may have any number of entries, including, but not limited to, two, four, eight, sixteen, thirty two and sixty four.
  • Local codebooks may have the same number of entries, or different number of entries.
  • a typical number of entries for a local codebooks may include 2, 4, 6, 8 and 16, but other sizes may be used as well.
  • Channel variation may typically be measured in terms of channel correlation, channel variation rate, vehicle speed, Doppler shift, or phase changes. Other measurements of channel variation may also be employed.
  • Frequency selectivity may typically be measured in terms of the length of delay spread. Other measurements of frequency selectivity may also be employed.
  • One local codebook set can also be implemented instead of two local codebook sets.
  • Three or more local codebook sets instead of one or two local codebook sets with proper selection of codewords and correlation can also be implemented.
  • ROM read only memory
  • RAM random access memory
  • register cache memory
  • semiconductor memory devices magnetic media such as internal hard disks and removable disks, magneto-optical media, and optical media such as CD-ROM disks, and digital versatile disks (DVDs).
  • Suitable processors include, by way of example, a general purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of integrated circuit (IC), and/or a state machine.
  • DSP digital signal processor
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • a processor in association with software may be used to implement a radio frequency transceiver for use in a wireless transmit receive unit (WTRU), user equipment (UE), terminal, base station, radio network controller (RNC), or any host computer.
  • the WTRU may be used in conjunction with modules, implemented in hardware and/or software, such as a camera, a video camera module, a videophone, a speakerphone, a vibration device, a speaker, a microphone, a television transceiver, a hands free headset, a keyboard, a Bluetooth® module, a frequency modulated (FM) radio unit, a liquid crystal display (LCD) display unit, an organic light-emitting diode (OLED) display unit, a digital music player, a media player, a video game player module, an Internet browser, and/or any wireless local area network (WLAN) module
  • WLAN wireless local area network

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Radio Transmission System (AREA)
US11/746,330 2006-05-09 2007-05-09 Variable feedback for universal terrestrial radio access Active 2032-12-10 US9749158B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/746,330 US9749158B2 (en) 2006-05-09 2007-05-09 Variable feedback for universal terrestrial radio access

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79907006P 2006-05-09 2006-05-09
US11/746,330 US9749158B2 (en) 2006-05-09 2007-05-09 Variable feedback for universal terrestrial radio access

Publications (2)

Publication Number Publication Date
US20070265037A1 US20070265037A1 (en) 2007-11-15
US9749158B2 true US9749158B2 (en) 2017-08-29

Family

ID=38694441

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/746,330 Active 2032-12-10 US9749158B2 (en) 2006-05-09 2007-05-09 Variable feedback for universal terrestrial radio access

Country Status (8)

Country Link
US (1) US9749158B2 (fr)
EP (2) EP2022227A2 (fr)
JP (1) JP2009536805A (fr)
KR (3) KR101103095B1 (fr)
CN (1) CN101444056B (fr)
AR (1) AR060988A1 (fr)
TW (3) TWI449389B (fr)
WO (1) WO2007133564A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190574A1 (en) * 2017-12-15 2019-06-20 Industrial Technology Research Institute Wireless communication device with hybrid beamforming and control method thereof

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1912347A1 (fr) * 2006-10-11 2008-04-16 Nokia Siemens Networks Gmbh & Co. Kg Procédé, station mobile et station de base pour transmission de données dans un système de communication mobile
CN101166052B (zh) * 2006-10-19 2012-05-23 株式会社Ntt都科摩 一种多输入多输出系统的预编码方法及使用该方法的设备
US7961640B2 (en) * 2006-10-26 2011-06-14 Qualcomm Incorporated Method and apparatus for codebook exchange in a multiple access wireless communication system
JP4889532B2 (ja) * 2007-03-20 2012-03-07 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける基地局装置及び方法
US8989285B2 (en) * 2007-09-26 2015-03-24 Samsung Electronics Co., Ltd. Efficient MIMO precoding feedback scheme
KR101161959B1 (ko) 2007-12-28 2012-07-03 지티이 코포레이션 자가적응 코드북의 처리방법
US8498358B2 (en) 2008-04-25 2013-07-30 Samsung Electronics Co., Ltd. Multiple antenna communication system including adaptive updating and changing of codebooks
KR100913940B1 (ko) * 2008-04-25 2009-08-26 삼성전자주식회사 적응적으로 코드북을 변경하거나 업데이트하는 다중 안테나 통신 시스템
KR101728834B1 (ko) 2008-04-29 2017-04-20 애플 인크. 다중 안테나 빔 형성 셀룰러 네트워크의 성능 향상
KR100970891B1 (ko) * 2008-05-07 2010-07-20 재단법인서울대학교산학협력재단 무선 통신 시스템에서 공간 분할 다중화 기법을 위한 채널정보 생성 장치 및 그 방법과 이를 이용한 데이터 전송장치 및 그 방법
KR101435846B1 (ko) * 2008-10-30 2014-08-29 엘지전자 주식회사 다중안테나를 갖는 무선 통신 시스템에서 간섭 제어 방법
CN101753184B (zh) * 2008-12-01 2013-05-08 中兴通讯股份有限公司 预编码反馈参数的调整方法和装置
EP2374221B1 (fr) 2009-01-05 2019-09-11 Marvell World Trade Ltd. Livres de codes de précodage destinés à des systèmes de communication entrées multiples sorties multiples
US8385441B2 (en) 2009-01-06 2013-02-26 Marvell World Trade Ltd. Efficient MIMO transmission schemes
KR101572217B1 (ko) * 2009-02-09 2015-11-27 삼성전자주식회사 다중 사용자 - 다중 안테나 무선 통신 시스템에서 프리코딩방법 및 이를 위한 시스템
US8238483B2 (en) 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
WO2010116273A1 (fr) 2009-04-06 2010-10-14 Marvell World Trade Ltd Stratégies de rétroaction améliorées pour des systèmes de communication mimo à utilisateurs multiples
US8543063B2 (en) 2009-04-21 2013-09-24 Marvell World Trade Ltd. Multi-point opportunistic beamforming with selective beam attenuation
CN101902304B (zh) * 2009-05-25 2014-10-15 株式会社Ntt都科摩 一种信道信息反馈方法、预编码方法、接收站及发送站
CN101997654B (zh) * 2009-08-17 2013-08-28 富士通株式会社 生成预编码矩阵码书组的方法和装置
KR20110036374A (ko) 2009-10-01 2011-04-07 삼성전자주식회사 명시적 피드백을 사용하는 다중 입출력 통신 시스템
US8675794B1 (en) 2009-10-13 2014-03-18 Marvell International Ltd. Efficient estimation of feedback for modulation and coding scheme (MCS) selection
US8917796B1 (en) 2009-10-19 2014-12-23 Marvell International Ltd. Transmission-mode-aware rate matching in MIMO signal generation
US8761086B2 (en) * 2009-11-02 2014-06-24 Qualcomm Incorporated Method and apparatus for hierarchical codebook design in wireless communication
KR101652869B1 (ko) 2009-11-02 2016-09-01 삼성전자주식회사 네트워크 다중 입출력 시스템에서 협력 멀티 포인트 송신을 위한 동적 채널 피드백 제어 방법
EP2499862B1 (fr) 2009-11-09 2018-09-05 Marvell World Trade Ltd. Rétroaction asymétrique pour systèmes de transmission coordonnés
JP5637486B2 (ja) 2009-12-17 2014-12-10 マーベル ワールド トレード リミテッド 交差偏波アンテナ用のｍｉｍｏフィードバックスキーム
JP6012472B2 (ja) 2010-01-07 2016-10-25 マーベル ワールド トレード リミテッド 専用基準信号（ｄｒｓ）プリコーディング粒度の通知、方法、通信装置及び移動通信端末
JP2011166536A (ja) * 2010-02-10 2011-08-25 Sharp Corp 無線送信装置、基地局装置、無線送信方法、基地局装置の制御プログラムおよび集積回路
JP5258002B2 (ja) 2010-02-10 2013-08-07 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムにおける装置、移動通信端末、チップセット、およびその方法
JP5281604B2 (ja) * 2010-03-09 2013-09-04 株式会社エヌ・ティ・ティ・ドコモ コードブック制御方法、基地局装置及び移動局装置
US8687741B1 (en) 2010-03-29 2014-04-01 Marvell International Ltd. Scoring hypotheses in LTE cell search
US8516349B2 (en) 2010-09-02 2013-08-20 Microsoft Corporation Generation and application of a sub-codebook of an error control coding codebook
WO2012027819A1 (fr) * 2010-09-02 2012-03-08 Nortel Networks Limited Génération et application d'un sous-livre de codes d'un livre de codes pour codage de contrôle d'erreur
JP2012100254A (ja) 2010-10-06 2012-05-24 Marvell World Trade Ltd Ｐｕｃｃｈフィードバックのためのコードブックサブサンプリング
US8615052B2 (en) 2010-10-06 2013-12-24 Marvell World Trade Ltd. Enhanced channel feedback for multi-user MIMO
CN102082639B (zh) * 2010-11-08 2014-01-29 大唐移动通信设备有限公司 信道状态信息的传输方法和设备
US9048970B1 (en) 2011-01-14 2015-06-02 Marvell International Ltd. Feedback for cooperative multipoint transmission systems
US8861391B1 (en) 2011-03-02 2014-10-14 Marvell International Ltd. Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes
US9124327B2 (en) 2011-03-31 2015-09-01 Marvell World Trade Ltd. Channel feedback for cooperative multipoint transmission
WO2013068915A2 (fr) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Retour d'informations de précodage pour antennes à polarisation croisée avec informations d'amplitude
US8923427B2 (en) 2011-11-07 2014-12-30 Marvell World Trade Ltd. Codebook sub-sampling for frequency-selective precoding feedback
WO2013068974A1 (fr) 2011-11-10 2013-05-16 Marvell World Trade Ltd. Codage cqi différentiel pour rétroaction multipoints coopérative
US9220087B1 (en) 2011-12-08 2015-12-22 Marvell International Ltd. Dynamic point selection with combined PUCCH/PUSCH feedback
US8902842B1 (en) 2012-01-11 2014-12-02 Marvell International Ltd Control signaling and resource mapping for coordinated transmission
KR20150009980A (ko) 2012-04-27 2015-01-27 마벨 월드 트레이드 리미티드 기지국들과 모바일 통신 단말기들 사이의 CoMP 통신
CN110391828B (zh) * 2014-09-26 2021-02-23 华为技术有限公司 信道测量方法和节点、系统、可读存储介质
US10332787B2 (en) * 2017-06-27 2019-06-25 Taiwan Semiconductor Manufacturing Co., Ltd. Formation method of interconnection structure of semiconductor device

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030185309A1 (en) 2001-04-07 2003-10-02 Pautler Joseph J. Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel
US20050286663A1 (en) * 2004-06-23 2005-12-29 Intel Corporation Compact feedback for closed loop MIMO systems
US20060056531A1 (en) * 2004-09-10 2006-03-16 Qinghua Li Interpolation in channel state feedback
US7035243B2 (en) 2003-02-18 2006-04-25 Extricom Ltd. Multiplex communication between access points and hub
US20060092054A1 (en) * 2004-09-08 2006-05-04 Qinghua Li Recursive reduction of channel state feedback
US7096181B2 (en) 2001-10-23 2006-08-22 Lg Electronics Inc. Method for searching codebook
US20070049218A1 (en) * 2005-08-30 2007-03-01 Qualcomm Incorporated Precoding and SDMA support
WO2007050861A2 (fr) 2005-10-27 2007-05-03 Qualcomm Incorporated Precodage lineaire destine a des canaux spatialement correles
US20070097910A1 (en) * 2005-10-27 2007-05-03 Ji Tingfang SDMA resource management
US20070098099A1 (en) * 2005-10-27 2007-05-03 Qualcomm, Incorporated Precoding for segment sensitive scheduling in wireless communication systems
US20070195974A1 (en) * 2006-02-09 2007-08-23 Qinghua Li Mimo communication system and method for beamforming using polar-cap codebooks
US20070217540A1 (en) * 2006-03-20 2007-09-20 Texas Instrumens Incorporated pre-coder selection based on resource block grouping
US20090129502A1 (en) * 2005-05-04 2009-05-21 Nortel Networks Limited Wireless feedback system and method
US20090326933A1 (en) * 2005-01-13 2009-12-31 Lin Xintian E Codebook generation system and associated methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1490975B1 (fr) * 2002-04-02 2009-08-12 Nokia Corporation Coefficients de transformation de codage utilises dans des codeurs et/ou des decodeurs d'image/video
KR20050116797A (ko) * 2003-02-18 2005-12-13 엑스트리콤 리미티드 액세스 포인트와 허브간 다중 통신
US7499857B2 (en) * 2003-05-15 2009-03-03 Microsoft Corporation Adaptation of compressed acoustic models

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030185309A1 (en) 2001-04-07 2003-10-02 Pautler Joseph J. Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel
US7096181B2 (en) 2001-10-23 2006-08-22 Lg Electronics Inc. Method for searching codebook
US7035243B2 (en) 2003-02-18 2006-04-25 Extricom Ltd. Multiplex communication between access points and hub
US20050286663A1 (en) * 2004-06-23 2005-12-29 Intel Corporation Compact feedback for closed loop MIMO systems
US20060092054A1 (en) * 2004-09-08 2006-05-04 Qinghua Li Recursive reduction of channel state feedback
US20060056531A1 (en) * 2004-09-10 2006-03-16 Qinghua Li Interpolation in channel state feedback
US20090326933A1 (en) * 2005-01-13 2009-12-31 Lin Xintian E Codebook generation system and associated methods
US20090129502A1 (en) * 2005-05-04 2009-05-21 Nortel Networks Limited Wireless feedback system and method
US20070049218A1 (en) * 2005-08-30 2007-03-01 Qualcomm Incorporated Precoding and SDMA support
US20070098099A1 (en) * 2005-10-27 2007-05-03 Qualcomm, Incorporated Precoding for segment sensitive scheduling in wireless communication systems
US20070174038A1 (en) * 2005-10-27 2007-07-26 Jibing Wang Linear precoding for spatially correlated channels
US20070097910A1 (en) * 2005-10-27 2007-05-03 Ji Tingfang SDMA resource management
WO2007050861A2 (fr) 2005-10-27 2007-05-03 Qualcomm Incorporated Precodage lineaire destine a des canaux spatialement correles
US20070195974A1 (en) * 2006-02-09 2007-08-23 Qinghua Li Mimo communication system and method for beamforming using polar-cap codebooks
US20070217540A1 (en) * 2006-03-20 2007-09-20 Texas Instrumens Incorporated pre-coder selection based on resource block grouping

Non-Patent Citations (18)

* Cited by examiner, † Cited by third party
Title
"Chinese Office Action (Translation)", 200780016915.X, Jan. 23, 2013, 8 pages.
"Chinese Office Action", 200780016915.X, Jan. 23, 2013, 6 pages.
"Korean Office Action (Translation)", Korean Patent Application No. 10-2008-7029930, 5 pages.
"Korean Office Action", Korean Patent Application No. 10-2008-7029930, 4 pages (see item 2 below).
"MIMO OFDMA E-UTRA Proposal for Different Antenna Configurations", 3GPP TSG RAN WG1 #43, R1-051315, Seoul, Korea Nov. 7-11, 2005, Texas Instruments, Nov. 2005, 6 pages.
"MIMO techniques for Downlink E-UTRA", TSG-RAN WG1 Meeting #43, R1-051455, Seoul, Republic of Korea, Nov. 7-11, 2005, NEC Group, Nov. 2005, 5 pages.
"Official Notice of Final Decision of Rejection (Translation)", Japanese Patent Application No. 2009-509825, 4 pages.
"Official Notice of Final Decision of Rejection", Japanese Patent Application No. 2009-09825, 3 pages (see item 6 below).
3GPP, 3rd Generation Partnership Proiect; Technical Specification Group Radio Access Network; Physical Layer Aspects for Evolved UTRA (Release 7), 3GPP TR25.814 V1.2.2 (Mar. 2006), (Mar. 2006).
Heath et al., "What is the Value of Limited Feedback for MIMO Channels?" IEEE Communications Magazine, vol. 42, No. 10, Oct. 2004, pp. 54-59.
Samanta et al., "Codebook Adaptation for Quantized MIMO Beamforming Systems," Signals, Systems and Computers, Conference Record of the Thirty-Ninth Asilmar Conference in Pacific Grove, Califorina, Oct. 28, 2005, pp. 376-380.
Samanta et al., "Codebook Adaptation for Quantized MIMO Beamforming Systems," Signals, Systems and Computers, Conference Record of the Thirty-Ninth Asilmar Conference in Pacific Grove, California, Oct. 28, 2005, pp. 376-380.
Samanta, Roopsha et al., "Codebook Adaption for Quantized MIMO Beamforming Systems", Wireless Networking and Communications Group. Dept. of Electrical and Computer Engineering. The University of Texas at Austin. 1-4244-0132-1/05 IEEE, 2005, 5 pages.
Third Generation Partnership Project, "Technical Specification Group Radio Access Network; Physical Channels and Modulation (Release 8)," 3GPP TS 36.211 V1.0.0 (Mar. 2007).
Third Generation Partnership Project, "Technical Specification Group Radio Access Network; Physical Layer Aspects for Evolved UTRA (Release 7)," 3GPP TR 25.814 v1.2.2 (Mar. 2006).
Third Generation Partnership Project, "Technical Specification Group Radio Access Network; Physical layer procedures (Release 8)," 3GPP TS 36.213 V1.0.0 (Mar. 2007).
Zhang et al., "A Tracking Approach for Precoded MIMO-OFDM Systems with Low Data Rate CSI Feedback," Personal, Indoor, and Mobile Communications, pp. 241-245 (Sep. 14, 2005).
Zhou et al., "Recursive and Trellis-based Feedback Reduction for MIMO-OFDM with Transmit Beamforming," IEEE Global Telecommunications Conference (Dec. 2, 2005).

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190574A1 (en) * 2017-12-15 2019-06-20 Industrial Technology Research Institute Wireless communication device with hybrid beamforming and control method thereof
US10491278B2 (en) * 2017-12-15 2019-11-26 Industrial Technology Research Institute Wireless communication device with hybrid beamforming and control method thereof

Also Published As

Publication number Publication date
EP2337288A2 (fr) 2011-06-22
CN101444056B (zh) 2014-12-10
KR20090014370A (ko) 2009-02-10
WO2007133564A2 (fr) 2007-11-22
KR20120089864A (ko) 2012-08-14
KR101103095B1 (ko) 2012-01-04
AR060988A1 (es) 2008-07-30
CN101444056A (zh) 2009-05-27
EP2337288A3 (fr) 2011-07-27
TW201110628A (en) 2011-03-16
TWI482464B (zh) 2015-04-21
TW201528739A (zh) 2015-07-16
KR101345868B1 (ko) 2014-01-15
EP2022227A2 (fr) 2009-02-11
TW200746762A (en) 2007-12-16
TWI449389B (zh) 2014-08-11
KR20090008466A (ko) 2009-01-21
JP2009536805A (ja) 2009-10-15
WO2007133564A3 (fr) 2008-04-10
US20070265037A1 (en) 2007-11-15

Similar Documents

Publication Publication Date Title
US9749158B2 (en) Variable feedback for universal terrestrial radio access
EP3001578B1 (fr) Procédé, appareil et système pour mettre en oeuvre un dispositif à entrées et sorties multiples virtuel multi-utilisateurs
US9571307B2 (en) Hybrid dedicated reference signal method and system
US8477863B2 (en) Precoded pilot transmission for multi-user and single user MIMO communications
US20090003474A1 (en) Constant modulus mimo precoding for constraining transmit antenna power for differential feedback
US9438325B2 (en) Method for signaling MU-MIMO parameters
US8634499B2 (en) Method and apparatus for performing blind signal separation in an OFDM MIMO system
US20090093221A1 (en) Method and apparatus for signaling interference information for multi-user mimo

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERDIGITAL TECHNOLOGY CORPORATION, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAN, KYLE JUNG-LIN;OLESEN, ROBERT LIND;GRIECO, DONALD M.;REEL/FRAME:019583/0325

Effective date: 20070705

STCF Information on status: patent grant

Free format text: PATENTED CASE

CC Certificate of correction
MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8

AS Assignment

Owner name: INTERDIGITAL PATENT HOLDINGS, INC., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INTERDIGITAL TECHNOLOGY CORPORATION;REEL/FRAME:070837/0530

Effective date: 20241218

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载